HYDRAULIC KIT
• For the connection of the hydraulic kit with the
closed circuit (collectors, tube heat exchanger
which is located at the bottom part of the
boiler) refer to the hydraulic diagram of the
solar system on page 19.
• The connection of the expansion vessel with
the safety valve of the hydraulic kit must have
greatest length of 2 meters, without any
corners and without any high air gathering
area. The diameter is
3/4”.
• After the plumbing installation, the closed
circuit must be cleaned. The cleaning of the
system is achieved with water for 15 minutes
by isolating the circulator from
it’s two valves
which are located before and after it and by
opening the two inlets / outlets of the system.
The inlets / outlets have records (male) for
connection to a plastic pipe.
• Before the filling of the closed circuit, we must
check the water tightness of all of the
connections. We can, for instance, during
the cleaning, turn-off one of the emptying-
filling valves and use a pressure pump or
the pressure of the water supply so that we
can raise the pressure to 5 bars for 15
minutes.
Attention:
the expansion vessel must be
isolated so as to minimize the overload of the
maximum functioning pressure.
• The mixing of the antifreeze liquid must be
done before the filling and in accordance to
the lowest environmental temperature (see
table on page 23).
• The filling of the system can be done either
from the top part of the collector, by the
gravity or with a pump from the hydraulic kit.
The functioning pressure, between 1,5 and 3
bar, can be achieved with the pressure
pump or the pressure of the water supply.
We constantly check all of the points of
degassing, while filling simultaneously with
liquid.
• All of the installations and connections of the
system must be done according to the
electric, plumbing, and construction
etc…
regulations applicable in your country.
• It is recommended that a pail is placed under
the hydraulic kit in which water or liquid will be
accumulated from the dripping of the safety
valve. This is really useful during the filling
and degassing or the hydraulic testing since
the valve opens at 6 bar.
• All of the piping that leave and return from and
to the collectors have to be properly insulated
so that they can withstand temperatures from
-30ºC up to +120ºC. It is also necessary to
use an anti-UV (solar radiation) for the
insulation.
• The insulation must have suitable thickness in
Accordance to the local climatic conditions.
• The distance between the collectors and the
tube heat exchanger of the boiler must be the
least possible so as to minimize the thermal
losses.
• Air trapping areas must be avoided. If this is
not possible, an automatic degasser must be
installed at that point.
• The diameter of the pipes must be from
∆18mm - 22mm for distance up to 20m and
∆15mm for distance down to 12m.
• All of the connection records which will be
used must withstand pressure of 6 bar and
temperatures between
–30ºC and + 200ºC.
• After the guarantee has expired, it is
recommended that a yearly check is made
on the installation and the connections.
38
Piping of the closed circuit
Hydraulic KIT
Summary of Contents for 1000/BL1
Page 1: ......
Page 12: ...CLIMATIC DATA OF SELECTED WORLD CITIES 12...
Page 13: ...Energyoutputofthecollectorinseveralcitiesoftheworld inkWh m2 13...
Page 30: ...Assembly diagram of the support base for one 30...
Page 34: ...Assembly diagram of the support base for three 34...
Page 37: ...Connectionofcollectorsandaccessories 37...
Page 39: ...HYDRAULIC KIT 39...